合の子弁当 あいのこべんとう Also written 合いの子弁当 Meanings Noun children's lunch box of cooked rice and a Western-style side dish (popular late Meiji and Taisho periods) Kanji 合 fit. Read as あい. 子 child 弁 speech. Read as ベン. 当 apply. Read as トウ. Jinuma: Japanese Dictionary · Word lists